Exercising apparatus



UNITED STATES PATENT OFFICE.

FREDERICK MEDART, OF ST. LOUIS, MISSOURI.

EXERCISING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 448,353, dated March 17, 1891.

Application filed July 3, 1890- Serial No. 357,678. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK MEDART, a citizen of the United States, residing at St. Louis,in the State of Missouri, haveinvented certain new and usefullmprovements in Parallel Bars for Gymnasiums; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a certain improvement in portable parallel bars for gymnasiums, such as are illustrated in the subjectmatter of my former Letters Patent No. 412,772, issued to me October 15, 1889; and the present improvement has for its object to provide a simple and convenient arrangement of end rollers for the same, which are capable of ready attachment and detachment, as hereinafter more fully set forth, and by which the transportation of the apparatus from place to place is rendered easy and convenient. I attain such object by the construction and arrangement of parts illustrated in the accompanying drawings, in which-- Figure 1 is a detail end elevation of a set of parallel bars embodying my present improvement; and Fig. 2, an enlargedsection at line at m, Fig. 1.

The general construction and arrangement of the parts of the apparatus may be substantially the same as that shown in the former Medart patents, No. 187,417 7, of February 20, 1877, and No. 412,722, of October 15, 1889, although my present invention is equally applicable to any other form of portable parallel bars now in use, and which consists, primarily, of a supporting-base 1, uprights or posts 2, carrying at their upper ends the parallel bars 3.

In the present invention I arrange longitu dinally-projecting socket-lugs 4 on the base 1, preferably of a hollow construction, as shown, and formed with journal sockets or recesses 5, that receive the journal-pins 6 of the roller 7, such sockets being of a forked form, opening downward, so as to admit of the ready removal or insertion of the roller 7 by lifting the end of the apparatus in which it is desired to insert or remove one of the rollers 7. It is preferable to provide each end of the base with one of these rollers, which will occupy a central transverse position with relation to the length of the apparatus, as shown, and such rollers will be of some length to prevent any tendency of the apparatus to tilttransversely when supported on said rollers, and in the fitting up of a set of the parallel bars the hollow projecting bosses t may be provided with the usual casters, as described in my former patent, No. 412,772, for ordinary use in a gymnasium, &c.

Having thus fully described my said in vention, whatIclaim as new, and desire to secure by Letters Patent, is-

A portable set of parallel bars having the base formed with projecting socket-lugs, the sockets of which open downward, in combination with a centrally-arranged transverse roller having journal-pins that turn in said sockets, substantially as and for the purpose described.

In testimony whereof witness my hand this 27th day of June, 1890.

O. W. STEINMETZ, ()rro F. STANGE. 

